http://archive.rgj.com/VideoNetwork/3420078587001/GM-s-Barra-pleads-ignorancehttp://cdn.newslook.com/95/950dcbf84c6f8dfd209df70b5906768b/mp4_low/950dcbf84c6f8dfd209df70b5906768b-mp4_low.mp4http://archive.rgj.com/VideoNetwork/3420078587001/GM-s-Barra-pleads-ignorancehttp://cdn.newslook.com/95/950dcbf84c6f8dfd209df70b5906768b/images/frame_ext.jpgGM's Barra pleads ignoranceBarra admitted to not reading all the documents submitted by GM, and had few answers when she appeared in front of a Congressional committee investigating GM's recalls. Bobbi Rebell reports.New Yorkmary barraFinancebobbi rebellnewslookUnited States of AmericaSNPXXLaura ChristianGMS & P Syndicate Public Company Limited02:46